Your ad account can clear a ROAS target and still miss the business target. Reconcile margin, overhead, profit, and current performance. Then see whether to scale, hold, or fix.
The account is running at 2.80x. The business needs 4.55x to protect its profit target.
The calculator shows whether margin, overhead, the profit target, or acquisition efficiency owns the next move.
Meta ROAS tells you what Meta attributed. The business decision also needs the margin that survived delivery, the overhead each sale carries, the profit target leadership wants to protect, and what the account is producing now.
This calculator puts those numbers in the right order. The answer comes first. The assumptions and equations stay visible underneath it.
Attributed revenue divided by ad spend shows how the platform is assigning credit. It is useful account evidence, but it is not a profit decision.
Observed account ROASReal margin, overhead, and the profit target decide how much of each sale can honestly pay for acquisition.
Required ROAS and cost capCompare the live account with the business boundary. The gap tells the team whether to scale, hold, or fix the underlying economics.
Owner and next moveThe output is not another benchmark to admire. It is a boundary the growth team can operate against.
Run the growth decisionGo deeper in the ecommerce ROAS playbook.
Blended ROAS hides the mix. Retargeting and branded search inflate the average while prospecting quietly runs under your break-even floor. Returns, discounts and overhead never show up in the platform number at all. Read each campaign against your real margin, not the blended line, and the leak usually shows up in cold prospecting.
Use target ROAS to know the number, a cost cap (Meta's name for your ad budget per sale) to enforce it at the ad-set level, and MER (total revenue over total spend) to judge whether the whole account is actually profitable. Platform ROAS is the dial; MER is the truth. When they diverge, trust MER and your P&L.
Both are right about different things. Meta counts view-through and 7-day-click conversions it wants to claim; Shopify counts orders. The gap is attribution, not performance. Set your targets off your real P&L and a blended MER, then run a periodic holdout or geo test to see how much Meta truly drives versus takes credit for.
Higher than 3x. When retargeting and brand pull the average up, cold prospecting has to clear roughly your target divided by (1 minus your remarketing share) to keep the blend honest. Hold prospecting to its own number, or you will scale spend that looks fine blended and loses money cold.
Efficiency erodes at the margin. The next dollar of spend reaches a colder, more expensive audience, so your marginal ROAS falls below your average well before the account flips unprofitable. Spend until marginal ROAS hits your target, not until average does, and feed fresh creative to hold the curve.
Fund the buy on first-order contribution and treat LTV as upside, unless you have a measured repeat curve and the cash to wait for payback. LTV-justified targets are where most brands quietly overspend: the lifetime value is modelled, the ad invoice is real. Test both so you see the payback window, not just the ratio.
They raise it. A 12% return rate and a sitewide discount both come straight out of contribution margin, so your real margin is lower than the on-paper number and your required ROAS climbs. That is why real margin and on-paper margin are separated here: the target is built on what survives returns, fees and discounts.
Your target tells you how much room you have to lose. If your hit rate is one winner in five, every winner has to pay for four tests, so a tighter target means a smaller testing allowance and a higher bar before you scale. Back into it: decide the share of ad budget you can spend on testing while still clearing target on the blend.
There is no universal number. A good ROAS clears your break-even floor and still funds overhead and the profit you want. Break-even is 1 divided by your gross margin, so a 50% margin breaks even at 2x and a 30% margin needs about 3.3x just to stop losing money. The real question is not whether 4x is good, but whether 4x is above the target your margins actually demand.
Break-even ROAS is the return that covers your costs at zero profit: 1 divided by your gross margin. Below it, every order loses money. It is the floor, not the goal. Your target ROAS sits above it because it also has to fund overhead and your net target, and most accounts that feel stuck are running a slice of spend between the two.
ROAS is revenue from ads divided by ad spend, so $10,000 in sales on $2,500 of spend is 4x. That is the easy part and also the trap: the formula says nothing about whether 4x keeps you profitable. Calculate it, then read it against your break-even floor, which is 1 divided by your gross margin. The number only means something next to the margin it has to clear.
ROAS measures revenue against ad spend; ROI measures profit against total cost. ROAS can read 4x while ROI is negative, because ROAS ignores margins, returns, fees and overhead and ROI does not. ROAS is the dial you steer ads with day to day; ROI and MER tell you whether the business actually made money. When they disagree, trust the profit number.
Break-even ROAS is the floor that covers your costs at zero profit, 1 divided by your gross margin. Target ROAS sits above it: the same math plus the overhead and net target you want the account to fund. Break-even tells you where you stop losing money; target tells you the number to actually set in Meta. This calculator works your P&L backwards to both, per product.